The Study on the Decolorization and Properties of Bismuth Glass

Table 1

Characteristics of Raman vibration peaks and bands.

Wavenumber (cm^−1)	Vibrational mode	Reference
100–200	Symmetric stretching vibration of Bi–O–Bi in (BiO3) and (BiO6) units	[14–16]
200–550	Symmetric stretching vibration of the Bi–O–Bi bond in the (BiO6) unit	[15–17]
570–620	Stretching vibration of Bi–O^− in (BiO6) unit	[14–16]
700–740	B–O–B bending vibration of (BO3) structural unit	[16, 18, 19]
950–1,000	Symmetric stretching vibration of B–O^− in (BO3) unit	[16, 20–23]
1,220–1,500	Asymmetric stretching vibration of B‒O^‒ in (BO3) and (BO4) units	[19, 24, 25]